How to use

inheritedChannel

method

in

java.lang.System

public static Channel inheritedChannel() throws IOException {
  return System.inheritedChannel();
}

public static Channel inheritedChannel() throws IOException {
  return System.inheritedChannel();
}

public static Channel inheritedChannel() throws IOException {
  return System.inheritedChannel();
}

public static Channel inheritedChannel() throws IOException {
  return System.inheritedChannel();
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

@SuppressWarnings("unchecked")
protected <T> T getSystemInheritedChannel(final Class<?> channelType)
throws IOException {
  final Channel inheritedChannel = System.inheritedChannel();
  if (inheritedChannel == null) {
    throw new IOException("Inherited channel is not set");
  }
  if (!(channelType.isInstance(inheritedChannel))) {
    throw new IOException("Inherited channel is not "
        + channelType.getName()
        + ", but "
        + inheritedChannel.getClass().getName());
  }
  return (T) inheritedChannel;
}

protected void initServerSocket() throws Exception {
  if (!getUseInheritedChannel()) {
    serverSock = ServerSocketChannel.open();
    socketProperties.setProperties(serverSock.socket());
    InetSocketAddress addr = (getAddress()!=null?new InetSocketAddress(getAddress(),getPort()):new InetSocketAddress(getPort()));
    serverSock.socket().bind(addr,getAcceptCount());
  } else {
    // Retrieve the channel provided by the OS
    Channel ic = System.inheritedChannel();
    if (ic instanceof ServerSocketChannel) {
      serverSock = (ServerSocketChannel) ic;
    }
    if (serverSock == null) {
      throw new IllegalArgumentException(sm.getString("endpoint.init.bind.inherited"));
    }
  }
  serverSock.configureBlocking(true); //mimic APR behavior
}

@Override
public void open() throws IOException
{
  synchronized(this)
  {
    try 
    {
      Channel channel = System.inheritedChannel();
      if ( channel instanceof ServerSocketChannel )
        _acceptChannel = (ServerSocketChannel)channel;
      else
        LOG.warn("Unable to use System.inheritedChannel() [" +channel+ "]. Trying a new ServerSocketChannel at " + getHost() + ":" + getPort());
      
      if ( _acceptChannel != null )
        _acceptChannel.configureBlocking(true);
    }
    catch(NoSuchMethodError e)
    {
      LOG.warn("Need at least Java 5 to use socket inherited from xinetd/inetd.");
    }
    if (_acceptChannel == null)
      super.open();
  }
}

@Override
public void open() throws IOException
{
  synchronized(this)
  {
    try 
    {
      Channel channel = System.inheritedChannel();
      if ( channel instanceof ServerSocketChannel )
        _acceptChannel = (ServerSocketChannel)channel;
      else
        LOG.warn("Unable to use System.inheritedChannel() [" +channel+ "]. Trying a new ServerSocketChannel at " + getHost() + ":" + getPort());
      
      if ( _acceptChannel != null )
        _acceptChannel.configureBlocking(true);
    }
    catch(NoSuchMethodError e)
    {
      LOG.warn("Need at least Java 5 to use socket inherited from xinetd/inetd.");
    }
    if (_acceptChannel == null)
      super.open();
  }
}

@Override
public void open() throws IOException
{
  synchronized(this)
  {
    try 
    {
      Channel channel = System.inheritedChannel();
      if ( channel instanceof ServerSocketChannel )
        _acceptChannel = (ServerSocketChannel)channel;
      else
        LOG.warn("Unable to use System.inheritedChannel() [" +channel+ "]. Trying a new ServerSocketChannel at " + getHost() + ":" + getPort());
      
      if ( _acceptChannel != null )
        _acceptChannel.configureBlocking(true);
    }
    catch(NoSuchMethodError e)
    {
      LOG.warn("Need at least Java 5 to use socket inherited from xinetd/inetd.");
    }
    if (_acceptChannel == null)
      super.open();
  }
}